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13958512980 = 2235239973397
BaseRepresentation
bin11001111111111111…
…00000000101010100
31100000210101221002020
430333333200011110
5212041334403410
610225031213140
71002622255056
oct147777400524
940023357066
1013958512980
115a13242445
1228568171b0
131415b44549
14965b978d6
1556a68aa70
hex33ffe0154

13958512980 has 48 divisors (see below), whose sum is σ = 39247407360. Its totient is φ = 3706691968.

The previous prime is 13958512961. The next prime is 13958513021. The reversal of 13958512980 is 8921585931.

It is a super-2 number, since 2×139585129802 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 472359 + ... + 501038.

It is an arithmetic number, because the mean of its divisors is an integer number (817654320).

Almost surely, 213958512980 is an apocalyptic number.

13958512980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13958512980 is an abundant number, since it is smaller than the sum of its proper divisors (25288894380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13958512980 is a wasteful number, since it uses less digits than its factorization.

13958512980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973648 (or 973646 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 51.

The spelling of 13958512980 in words is "thirteen billion, nine hundred fifty-eight million, five hundred twelve thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 239 478 717 956 1195 1434 2390 2868 3585 4780 7170 14340 973397 1946794 2920191 3893588 4866985 5840382 9733970 11680764 14600955 19467940 29201910 58403820 232641883 465283766 697925649 930567532 1163209415 1395851298 2326418830 2791702596 3489628245 4652837660 6979256490 13958512980